<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body{
				margin: 0;
			}
			.header{
				position: relative;
				z-index: 1;
				height: 100px;
				background-color: green;
			}
			
			.box{
				width: 200px;
				height: 200px;
				background-color: orange;
				box-shadow: 0 0 10px 5px #666;
				/* 兼容 */
				-webkit-box-shadow: 0 0 10px 5px #666;
				/* chrome */
				-moz-box-shadow: 0 0 10px 5px #666;
				/* firfox */
				
				/* margin-left: 100px; */
			}
			.box1{
				width: 200px;
				height: 200px;
				background-color: #bfa;
			}
		</style>
	</head>
	<body>
		<div class="header">
			
		</div>
		<div class="box">
			
		</div>
		<div class="box1"></div>
	</body>
</html>
